CN109076433B

CN109076433B - Signal transmission method, network equipment and terminal equipment

Info

Publication number: CN109076433B
Application number: CN201680084002.0A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2020-08-04
Anticipated expiration: 2036-06-21
Also published as: US11452054B2; JP6884798B2; HK1258342A1; US10880846B2; CN111884780B; TW201801553A; WO2017219241A1; MX2018014288A; US20190166568A1; JP2019522910A; EP3425970B1; KR102487332B1; CA3043786C; TWI746573B; ES2889909T3; EP3905787A1; EP3425970A1; CN109076433A; PL3425970T3; EP3425970A4

Abstract

The embodiment of the invention provides a signal transmission method, network equipment and terminal equipment. The method for transmitting signals comprises the following steps: the network equipment sends a plurality of synchronous signals in a synchronous signal period, and the terminal equipment detects the plurality of synchronous signals sent by the network equipment in the synchronous signal period; the network equipment sends broadcast channels or other signals corresponding to the plurality of synchronous signals, and the terminal equipment detects the broadcast channels or other signals sent by the network equipment and corresponding to the plurality of synchronous signals according to the detected plurality of synchronous signals. The signal transmission method, the network equipment and the terminal equipment can improve the signal detection performance of the terminal equipment.

Description

Signal transmission method, network equipment and terminal equipment

Technical Field

The present invention relates to the field of wireless communication, and more particularly, to a method of transmitting a signal, a network device, and a terminal device.

Background

In the 5G technology, data transmission in a high frequency band (with a center frequency above 6GHz, such as 28GHz) needs to be supported, so as to meet the requirement of 5G on the transmission rate. When data transmission is performed in a high frequency band, in order to achieve a higher transmission rate, a Multiple-Input Multiple-Output (MIMO) antenna technology needs to be adopted. The use of MIMO technology at high frequencies places high demands on the rf components of the antenna, and the hardware cost of the antenna, such as the number of analog/digital (a/D) or digital-analog (D/a) converters, also increases significantly. In order to reduce the cost, analog beamforming is usually used in the high frequency band to reduce the number of the transceiving rf units. The analog beamforming technique is a technique of beamforming an analog signal by a phase shifter after D/a conversion. The analog beamforming technique is not only used for the transmission of data channels, but also can be used for the cell access process.

In a long Term Evolution system (L ong Term Evolution, L TE), a cell access of a terminal device first needs to detect a synchronization signal and a corresponding broadcast channel from a cell.

Disclosure of Invention

The embodiment of the invention provides a method and a device for transmitting signals, which can improve the performance of detecting signals by terminal equipment.

In a first aspect, a method for transmitting a signal is provided, including: the method comprises the steps that terminal equipment detects a plurality of synchronous signals sent by network equipment in a synchronous signal period; and the terminal equipment detects broadcast channels which are sent by the network equipment and correspond to the plurality of synchronous signals or other signals which are sent by the network equipment after the plurality of synchronous signals and are except the corresponding broadcast channels according to the plurality of detected synchronous signals.

In the embodiment of the invention, because the terminal equipment detects a plurality of synchronous signals sent by the network equipment in one synchronous signal period, the terminal equipment can detect the signals or broadcast channels sent by the network equipment subsequently according to the plurality of synchronous signals in one synchronous signal period, thereby shortening the time for detecting the subsequent signals or broadcast channels by the terminal equipment and further improving the signal detection performance of the terminal equipment.

In one possible implementation, the plurality of synchronization signals use the same sequence.

In the embodiment of the invention, as the plurality of synchronous signals detected by the terminal equipment adopt the same sequence, namely the plurality of synchronous signals are repeatedly sent, the accuracy of synchronous signal detection can be improved by the terminal equipment based on the detection of the plurality of synchronous signals carrying the same information.

In one possible implementation manner, at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

In the embodiment of the invention, the terminal equipment can better receive a plurality of different signals because the transmission parameters of the plurality of synchronous signals sent by the network equipment are different.

In a possible implementation manner, the detecting, by the terminal device, a plurality of synchronization signals sent by the network device in one synchronization signal period includes: the terminal device detects the plurality of synchronous signals according to transmission parameters agreed in advance by the network device and the terminal device, or according to transmission parameters determined based on information carried by partial synchronous signals in the plurality of synchronous signals.

In a possible implementation manner, the detecting, by the terminal device, a broadcast channel corresponding to the plurality of synchronization signals and sent by the network device according to the detected plurality of synchronization signals includes: the terminal device determines at least one of the following transmission parameters of the corresponding broadcast channel according to the detected information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; and the terminal equipment detects the corresponding broadcast channel according to the determined transmission parameters.

In a possible implementation manner, the detecting, by the terminal device, a plurality of synchronization signals sent by the network device in one synchronization signal period includes: the terminal equipment adopts different beam forming receiving weights to detect the plurality of synchronous signals; the detecting, by the terminal device, a broadcast channel corresponding to the plurality of synchronization signals sent by the network device or other signals sent by the network device except the corresponding broadcast channel according to the detected plurality of synchronization signals includes: the terminal equipment determines a first beamforming receiving weight of the terminal equipment according to a beamforming receiving weight adopted by a first synchronization signal in the plurality of synchronization signals; the terminal equipment adopts the first beam forming receiving weight value to detect the other signals or detect the corresponding broadcast channel

In the embodiment of the present invention, the terminal device receives a plurality of synchronization signals by using different beamforming receiving weights, so that the terminal device can determine a beamforming receiving weight used for detecting a signal or a broadcast channel subsequently sent by the network device according to a received beamforming receiving weight corresponding to a synchronization signal meeting requirements in one synchronization signal period, that is, the terminal device can shorten a process of determining the beamforming weight used for receiving the signal or the broadcast channel subsequently sent by the network device.

In a possible implementation manner, the first synchronization signal is a synchronization signal with the best reception quality in the plurality of synchronization signals detected by the terminal device.

In the embodiment of the invention, the terminal equipment takes the beam forming weight corresponding to the synchronous signal with the best receiving quality as the beam forming weight for receiving the signals or the broadcast channels sent by the network equipment subsequently, so that the performance of receiving the signals or the broadcast channels sent subsequently can be improved.

In one possible implementation, the method further includes: and the terminal equipment determines a first beamforming transmitting weight used by the terminal equipment for transmitting signals to the network equipment according to the first beamforming receiving weight.

In a possible implementation manner, the determining, by the terminal device, a first beamforming transmit weight used by the terminal device to send a signal to the network device according to the first beamforming receive weight includes: when the number of the radio frequency units used by the terminal device to receive the synchronization signal is equal to the number of the radio frequency units used by the terminal device to send signals to the network device, the terminal device determines the first beamforming receiving weight as the first beamforming transmitting weight.

In a possible implementation manner, the determining, by the terminal device, a first beamforming transmit weight used by the terminal device to send a signal to the network device according to the first beamforming receive weight includes: and when the number of the radio frequency units used for receiving the synchronous signals by the terminal equipment is not equal to the number of the radio frequency units used for sending signals to the network equipment by the terminal equipment, the terminal equipment determines the first beamforming transmitting weight according to the angle corresponding to the first beamforming receiving weight and the number of the radio frequency units used for sending signals to the network equipment by the terminal equipment.

In a possible implementation manner, the corresponding broadcast channels are multiple broadcast channels carrying the same information.

In a possible implementation manner, the corresponding broadcast channel detected by the terminal device is a plurality of broadcast channels, and at least one of the following transmission parameters of the plurality of broadcast channels is different: hybrid automatic Repeat reQuest (HARQ) redundancy version, frequency domain resource, time domain resource, information scrambling method, subcarrier interval, or data transmission time length.

In a possible implementation manner, when the corresponding broadcast channel detected by the terminal device is a plurality of broadcast channels, the method further includes: and the terminal equipment sends broadcast channel indication information to the network equipment, wherein the broadcast channel indication information is used for indicating a first broadcast channel in the plurality of broadcast channels.

In the embodiment of the invention, the terminal equipment sends the indication information indicating a certain broadcast channel to the network equipment, so that the network equipment can determine the sending parameters which can be adopted when the network equipment sends the broadcast channel subsequently according to the indication information.

In a possible implementation manner, the first broadcast channel is a broadcast channel with the best reception quality among the plurality of broadcast channels received by the terminal device by using the first beamforming reception weight.

In a possible implementation manner, the sending, by the terminal device, broadcast channel indication information to the network device includes: and the terminal equipment sends the broadcast channel indication information to the network equipment through a control channel or a random access channel.

In a possible implementation manner, the physical resources used by the synchronization signals transmitted multiple times have a predefined mapping relation with the physical resources used by the corresponding broadcast channel.

In one possible implementation, the corresponding broadcast channel is a physical broadcast channel for transmitting Management Information Bytes (MIB).

In a second aspect, a method of transmitting a signal is provided, including: the network equipment transmits a plurality of synchronous signals in one synchronous signal period; the network device transmits broadcast channel signals corresponding to the plurality of synchronization signals or transmits other signals except the corresponding broadcast channels.

In the embodiment of the invention, the network equipment sends a plurality of synchronous signals in one synchronous signal period, so that the terminal equipment can detect the signals or broadcast channels sent by the network equipment subsequently according to the plurality of synchronous signals in one synchronous signal period, thereby shortening the time for detecting the signals or broadcast channels by the terminal equipment and further improving the performance for detecting the signals by the terminal equipment.

In one possible implementation, the network device sends a plurality of synchronization signals in one synchronization signal period, including: the network equipment transmits a plurality of synchronous signals by adopting the same beam forming emission weight value in one synchronous signal period.

In the embodiment of the invention, the network equipment adopts the same beam forming emission weight value for a plurality of synchronous signals sent in one synchronous signal period, so that the terminal equipment can better detect subsequent signals or broadcast channels according to the plurality of synchronous signals.

In a possible implementation manner, the transmission parameters of the multiple synchronization signals are transmission parameters agreed in advance by the network device and the terminal device, or the transmission parameters of the multiple synchronization signals are transmission parameters determined by the network device according to information carried by a part of the synchronization signals in the multiple synchronization signals.

In a possible implementation manner, the following at least one transmission parameter of the corresponding broadcast channel is determined by the network device according to information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; the network device transmitting a broadcast channel corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals, including: and the network equipment sends the corresponding broadcast channel according to the determined transmission parameters after sending the plurality of synchronous signals.

In one possible implementation, the network device, after transmitting the plurality of synchronization signals, transmits a broadcast channel corresponding to the plurality of synchronization signals, including: the network device transmits a plurality of broadcast channels corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals, wherein the plurality of broadcast channels carry the same information.

In one possible implementation, the network device transmitting a plurality of broadcast channels corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals includes: and after the network equipment sends the plurality of synchronous signals, adopting different beam forming emission weights to send a plurality of broadcast channels corresponding to the plurality of synchronous signals.

In a possible implementation manner, the corresponding broadcast channel is a plurality of broadcast channels, and at least one of the following transmission parameters of the plurality of broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

In a possible implementation manner, when the corresponding broadcast channel is a plurality of broadcast channels, the method further includes: the network device receives broadcast channel indication information sent by the terminal device, wherein the broadcast channel indication information is used for indicating a first broadcast channel in the plurality of broadcast channels.

In a possible implementation manner, the receiving, by the network device, broadcast channel indication information sent by the terminal device includes: and the network equipment receives the broadcast channel indication information sent by the terminal equipment through a control channel or a random access channel.

In one possible implementation, the method further includes: and the network equipment determines a first beamforming transmission weight value adopted by a broadcast channel sent by the network equipment according to the beamforming transmission weight value adopted by the first broadcast channel.

In a possible implementation manner, the determining, by the network device, a first beamforming transmission weight used by the network device to send another signal according to the beamforming transmission weight used by sending the first broadcast channel includes: and the network equipment determines the beamforming transmission weight value adopted by the first broadcast channel as the first beamforming transmission weight value.

In one possible implementation, the method further includes: and the network equipment determines a beam forming receiving weight value used for receiving signals by the network equipment according to the first beam forming transmitting weight value.

In a possible implementation manner, the determining, by the network device, a beamforming reception weight used by the network device to receive a signal according to the first beamforming transmission weight includes: and when the number of the radio frequency units used by the network device for sending the first broadcast channel is equal to the number of the radio frequency units used by the network device for receiving signals, determining the first beamforming transmission weight as the beamforming reception weight.

In a possible implementation manner, the determining, by the network device, a beamforming reception weight used by the network device to receive a signal according to the first beamforming transmission weight includes: and when the number of the radio frequency units used for sending the first broadcast channel by the network equipment is not equal to the number of the radio frequency units used for receiving signals by the network equipment, determining the beamforming receiving weight according to the angle corresponding to the first beamforming transmitting weight and the number of the radio frequency units used for receiving signals.

In a possible implementation manner, the corresponding broadcast channel is a physical broadcast channel for transmitting the MIB.

In a third aspect, a terminal device is provided, where the terminal device may be configured to perform each process performed by the terminal device in the method for transmitting a signal in the foregoing first aspect and various implementations. The terminal device includes: the first detection module is used for detecting a plurality of synchronous signals sent by the network equipment in a synchronous signal period; and a second detection module, configured to detect, according to the detected multiple synchronization signals, a signal sent by the network device after the multiple synchronization signals, or detect a broadcast channel sent by the network device and corresponding to the multiple synchronization signals.

In a fourth aspect, a network device is provided, which may be configured to perform the respective processes performed by the network device in the method for transmitting signals in the foregoing second aspect and various implementations. The network device includes: a first sending module, configured to send a plurality of synchronization signals within one synchronization signal period; and a second transmitting module, configured to transmit another signal after transmitting the plurality of synchronization signals, or transmit a broadcast channel corresponding to the plurality of synchronization signals.

In a fifth aspect, a terminal device is provided that includes a processor, a memory for storing code, a receiver, and a transmitter, the processor for executing the code in the memory. When the code is executed, the processor invokes the receiver and transmitter to implement the method of the first aspect.

In a sixth aspect, a network device is provided that includes a processor, a memory for storing code, a receiver, and a transmitter, the processor for executing the code in the memory. When the code is executed, the processor invokes the receiver and transmitter to implement the method of the second aspect.

In a seventh aspect, a system chip is provided, which includes: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement the processes performed by the terminal device in the method for transmitting signals in the foregoing first aspect and various implementations.

In an eighth aspect, a system chip is provided, which includes: an input interface, an output interface, at least one processor, a memory, the processor being configured to execute code in the memory, and when the code is executed, the processor may implement the processes performed by the network device in the method for transmitting signals in the foregoing second aspect and various implementations.

In a ninth aspect, there is provided a computer-readable storage medium storing a program for causing a terminal device to execute the method for transmitting a signal of the first aspect described above and any one of its various implementations.

A tenth aspect provides a computer-readable storage medium storing a program for causing a network device to execute the method for transmitting a signal of the second aspect described above and any one of its various implementations.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.

Fig. 2 is a schematic flow chart of a method of transmitting a signal of an embodiment of the present invention.

Fig. 3 is a schematic flow chart of a method of transmitting a signal of an embodiment of the present invention.

Fig. 4 is a schematic diagram of a method of transmitting a signal according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a method of transmitting a signal according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a method of transmitting a signal according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a method of transmitting a signal according to an embodiment of the present invention.

Fig. 8 is a schematic configuration diagram of a network device of the embodiment of the present invention.

Fig. 9 is a schematic configuration diagram of a terminal device of the embodiment of the present invention.

Fig. 10 is a schematic configuration diagram of a network device of the embodiment of the present invention.

Fig. 11 is a schematic configuration diagram of a terminal device of the embodiment of the present invention.

Fig. 12 is a schematic configuration diagram of a system chip according to an embodiment of the present invention.

Fig. 13 is a schematic configuration diagram of a system chip according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, such as a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a long Term Evolution (L on Term Evolution (L TE) System, a Universal Mobile Telecommunications System (UMTS), and other current communication systems, and is especially applied to a future 5G System.

The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless local loop (Wireless L cal L oop, abbreviated as "W LL") station, a Personal Digital Assistant ("PDA"), a handheld device having a Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network, or a terminal device in a future evolved Public land mobile Network ("P2 MN"), and the like.

The Network device in the embodiment of the present invention may be a device for communicating with a terminal device, where the Network device may be a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA system, an evolved node b (eNB or eNodeB) in L TE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, or a Network device in a future evolved P L MN Network.

Fig. 1 is a schematic diagram of an application scenario of the present invention. The communication system in fig. 1 may comprise a base station 10 and a terminal device 20. The base station 10 is used to provide a communication service to the terminal device 20 and access a core network, and the terminal device 20 accesses the network by searching for a synchronization signal, a broadcast signal, or the like transmitted by the base station 10, thereby performing communication with the network. The arrows shown in fig. 1 may represent uplink/downlink transmissions over the cellular link between the terminal device 20 and the base station 10.

Fig. 2 shows a schematic flow diagram of a method of transmitting a signal according to an embodiment of the invention. The terminal device in the method may be the terminal device 20 in fig. 1, and the network device in the method may be the base station 10 in fig. 1. It should be understood that fig. 2 shows steps or operations of a method of transmitting signals, but these steps or operations are merely examples, and other operations or variations of the respective operations in fig. 2 may also be performed by embodiments of the present invention.

S210, the network device sends a plurality of synchronization signals in a synchronization signal period.

S220, after transmitting the plurality of synchronization signals, the network device transmits broadcast channels corresponding to the plurality of synchronization signals, or transmits other signals except the corresponding broadcast channels.

Correspondingly, a schematic flowchart of a method for transmitting a signal, which is performed by a terminal device according to an embodiment of the present invention, is shown in fig. 3. It should be understood that fig. 3 shows steps or operations of a method of transmitting signals, but these steps or operations are merely examples, and other operations or variations of the respective operations in fig. 3 may also be performed by embodiments of the present invention.

S310, the terminal device detects a plurality of synchronous signals sent by the network device in a synchronous signal period.

And S320, the terminal device detects the broadcast channels sent by the network device and corresponding to the plurality of synchronous signals or detects other signals except the broadcast channels sent by the network device according to the plurality of detected synchronous signals.

In the embodiment of the invention, the network equipment sends a plurality of synchronous signals in one synchronous signal period, and the terminal equipment detects based on the plurality of synchronous signals, so that the detection performance of the synchronous signals can be improved. Because the corresponding broadcast channel needs to be detected based on the information carried by the synchronization signal, the detection performance of the broadcast channel can be improved.

In the embodiment of the present invention, the Synchronization Signal (SS) may be a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSs), or a synchronization Signal composed of a Primary synchronization Signal and a Secondary synchronization Signal.

In the embodiment of the present invention, the plurality of synchronization signals may use the same sequence, that is, the plurality of synchronization signals are the same signal that is repeatedly transmitted. The plurality of synchronization signals may be obtained using a sequence such as a ZC (Zadoff-Chu) sequence or a pseudo-random sequence.

In this embodiment of the present invention, the signal sent by the network device after the multiple synchronization signals may be other types of synchronization signals, pilot signals, data signals, or the like, which is not limited in this invention.

In the embodiment of the present invention, the synchronization signal sent by the network device and the physical resource used by the corresponding broadcast channel may adopt a predefined correspondence. For example, the synchronization signal and the corresponding broadcast channel are transmitted on a predetermined fixed time-frequency resource, or the synchronization signal and the time-domain resource of the corresponding broadcast channel are separated by a fixed transmission time unit.

In the embodiment of the present invention, a method for determining a broadcast channel corresponding to a synchronization signal includes: the Identification (ID) carried by the synchronization signal is used to determine the transport format of the broadcast channel, e.g. to determine the scrambling of the broadcast channel. The ID carried by the synchronization signal may be an ID for identifying a network, such as a cell ID, a multi-cell (supercell) ID, a system (system) ID, and the like.

In the embodiment of the present invention, the synchronization signal sent by the network device for multiple times in one synchronization signal period may adopt different transmission parameters. The transmission parameters referred to herein may include at least one of the following parameters: frequency domain resources, such as Physical Resource Blocks (PRBs), subcarriers, subbands, or a set of more than one Resource, may also be frequency hopping patterns used for determining frequency domain resources; time domain resources, such as subframes, symbols, or other defined transmission time units, may also be a set of the above resources, or a frequency hopping pattern used to determine the time domain resources; a subcarrier spacing; the length of data transmission time, such as the duration length, etc.

The transmission parameters of the plurality of synchronization signals may be predetermined by the network device and the terminal device, or may be carried in a part of the synchronization signals of the plurality of synchronization signals.

If the transmission parameters of the plurality of synchronous signals are pre-defined by the network equipment and the terminal equipment, the terminal equipment detects the plurality of synchronous signals according to the defined transmission parameters; if the transmission parameters of the plurality of synchronization signals are carried in part of the synchronization signals of the plurality of synchronization signals, the terminal device detects the synchronization signals carrying the transmission parameters, and then detects other synchronization signals in the plurality of synchronization signals based on the transmission parameters carried by the part of the synchronization signals. For example, the terminal device may determine the transmission parameters of other synchronization signals according to the network side ID carried in the partial synchronization signal.

In the embodiment of the present invention, the network device may send the multiple synchronization signals by using the same beamforming weight in one synchronization signal period. The beamforming weight may be an analog beamforming weight, a digital beamforming weight, or a hybrid beamforming weight. Here, the hybrid beamforming weight is a combined weight of analog beamforming and digital beamforming, such as a matrix kronecker product or product of the analog beamforming weight and the digital beamforming weight.

More specifically, the beamforming weight used by the network device to transmit the synchronization signal may be a wide beamforming weight, such as a broadcast beamforming weight. In this way a greater coverage of the synchronization signal can be achieved.

In the embodiment of the present invention, one possible implementation manner for the terminal device to detect multiple synchronization signals sent by the network device in one synchronization signal period is as follows: the terminal equipment adopts different beam forming receiving weights to detect a plurality of synchronous signals sent by the network equipment in a synchronous signal period. Correspondingly, the implementation manner of detecting, by the terminal device, the signal sent by the network device after the plurality of synchronization signals or detecting, by the network device, the broadcast channel corresponding to the plurality of synchronization signals is as follows: the terminal equipment determines a first beamforming receiving weight of the terminal equipment according to a beamforming receiving weight adopted by a first synchronization signal in the plurality of synchronization signals; and the terminal equipment adopts the first beamforming receiving weight to detect signals sent by the network equipment after the plurality of synchronous signals or detect broadcast channels which are sent by the network equipment and correspond to the plurality of synchronous signals.

More specifically, the terminal device may use different beamforming weights (referred to as beamforming receive weights herein) to detect a synchronization signal repeatedly sent within a synchronization signal period, and use the beamforming receive weight used by the synchronization signal with the best receive quality as a beamforming receive weight to be used for detecting a corresponding broadcast channel. The reception quality can be measured by a physical quantity such as Reference Signal Receiving Power (RSRP), received Signal strength, or correlation peak.

The terminal equipment detects the same synchronous signal by adopting different beam forming receiving weights, and can determine the optimal beam forming receiving weight in the weights. The terminal equipment receives the broadcast channel or other signals sent subsequently by using the optimal beamforming receiving weight, so that higher receiving beamforming gain can be obtained, and the detection performance of the broadcast channel or other signals sent subsequently is improved.

Further, the terminal device may further obtain a beamforming transmit weight for transmitting a signal according to the determined beamforming receive weight for detecting the signal or the broadcast channel.

If the number of the radio frequency units used by the terminal device for sending signals is equal to the number of the radio frequency units used by the terminal device for detecting signals or broadcasting channels, the beamforming receiving weight value determined by the terminal device for detecting signals or broadcasting channels can be directly used as the beamforming receiving weight value used by the terminal device for sending signals.

If the number of the radio frequency units used by the terminal device for sending signals is not equal to the number of the radio frequency units used by the terminal device for detecting signals or broadcasting channels, the beamforming transmission weight value used by the terminal device for sending signals can be obtained according to the angle corresponding to the beamforming reception weight value used by the terminal device for detecting signals or broadcasting channels and the number of the radio frequency units used by the terminal device for sending signals.

In the embodiment of the present invention, the network device may periodically send a plurality of synchronization signals within one synchronization signal period, and then the terminal device may periodically detect the synchronization signals to periodically determine the beamforming receiving weight for detecting a subsequent signal or a broadcast channel and/or the beamforming transmitting weight for sending a signal, so as to update the beamforming weights.

The broadcast channel in the embodiment of the present invention may be a physical broadcast channel for transmitting the MIB. The MIB may include system information such as transmission system bandwidth.

The transmission parameters of the broadcast channel in the embodiment of the present invention may include at least one of the following parameters: frequency domain resources, such as PRBs, subcarriers, subbands, or a set of more than one resource, may also be a frequency hopping pattern for determining the frequency domain resources; time domain resources, such as subframes, symbols, or other defined transmission time units, may also be a set of the above resources, or a frequency hopping pattern used to determine the time domain resources; a subcarrier spacing; the length of data transmission time, such as the duration length, etc.

The transmission parameters of the broadcast channel in the embodiment of the present invention may be predetermined by the network device and the terminal device, or the terminal device may determine the transmission parameters of the broadcast channel based on the information carried in the synchronization signal corresponding to the broadcast channel, for example, the transmission parameters of the broadcast channel may be determined according to the network ID carried in the synchronization signal.

If the transmission parameters of the broadcast channel are pre-defined by the network equipment and the terminal equipment, the terminal equipment detects the broadcast channel according to the defined transmission parameters; if the transmission parameters of the plurality of synchronization signals are carried in the synchronization signals, the terminal device detects the synchronization signals carrying the transmission parameters, and then detects the broadcast channel based on the transmission parameters carried by the synchronization signals. For example, the terminal device may determine the transmission parameters of the broadcast channel according to the network side ID carried in the synchronization signal.

In an embodiment of the present invention, a network device may transmit multiple broadcast channels in one broadcast channel transmission period. The transmission period of the broadcast channel may be predetermined in general.

When a network device sends multiple broadcast channels in one broadcast channel cycle, the multiple broadcast channels may carry the same bit information.

The broadcast channel transmitted multiple times by the network device may employ different transmission parameters. Accordingly, the terminal device detects the plurality of broadcast channels according to different transmission parameters.

In the embodiment of the present invention, the network device may transmit the multiple broadcast channels by using different beamforming weights. The beamforming weight may be an analog beamforming weight, a digital beamforming weight, or a hybrid beamforming weight. For example, the different beamforming weights may be a set of Discrete Fourier Transform (DFT) vectors, or may be a set of array corresponding vectors.

At this time, the terminal device may report broadcast channel indication information to the network device based on the measurement results of the multiple broadcast channels sent by the network device, where the broadcast channel indication information is used to indicate one broadcast channel of the multiple broadcast channels. In general, the broadcast channel indication information is used to indicate a broadcast channel with the best reception quality among broadcast channels detected by the terminal device. For example, when the terminal device detects the multiple broadcast channels by using the first beamforming receive weight, the terminal device may report the broadcast channel with the best receive quality to the network device, so that the network device determines, according to the beamforming weight used for sending the broadcast channel, a beamforming weight that needs to be used for a subsequent signal sending or broadcast channel (for convenience of subsequent description, the beamforming weight is referred to as a first beamforming transmit weight).

In this embodiment of the present invention, the broadcast channel indication information may be an index of one broadcast channel in one broadcast channel transmission period. For example, if there are 4 broadcast channels in a broadcast channel transmission period, 2 bits of information may be used to report the broadcast channel indication information.

The terminal device may report the broadcast channel indication information to the network side through an uplink control channel or an uplink random access channel.

After receiving the broadcast channel indication information sent by the terminal device, the network device may determine a beamforming weight value adopted by a subsequent sending signal or broadcast channel according to the broadcast channel indication information.

One possible implementation manner for the network device to determine the beamforming weight used by the subsequent transmission signal according to the broadcast channel indication information is as follows: and the network equipment takes the beamforming weight value adopted by the broadcast channel indicated by the indication information of the previously sent broadcast channel as the beamforming transmitting weight value adopted by the subsequent sent signal.

The network equipment sends the same broadcast channel by adopting different beam forming emission weights, and then the terminal equipment feeds back the best broadcast channel, thereby determining the optimal beam forming emission weight in the emission weights. The network equipment sends the subsequent broadcast channel or other signals by using the optimal beam forming emission weight, so that higher forming gain can be obtained, and the detection performance of the subsequently sent broadcast channel or other signals is improved.

Further, the network device may also determine a beamforming reception weight used for receiving the subsequent signal based on the beamforming weight used for the subsequent signal.

One possible implementation is: and if the number of the radio frequency units used for sending the signals and the number of the radio frequency units used for receiving the signals are equal, directly taking the determined beamforming weight value adopted by the subsequent sending signals as the beamforming receiving weight value adopted by the subsequent receiving signals.

One possible implementation is: if the number of the radio frequency units used for sending signals and the number of the radio frequency units used for receiving signals by the network equipment are not equal, the beamforming receiving weight value used for receiving signals later is obtained based on the determined angle (or phase) corresponding to the beamforming weight value used for sending signals later and the number of the radio frequency units used for receiving signals. For example, if the determined beamforming weight used by the subsequent transmission signal is a DFT vector, the beamforming receive weight used by the subsequent reception signal can be obtained after performing dimension (length) extension on the DFT vector.

In the embodiments of the present invention, the network device may transmit a plurality of broadcast channels in each periodic broadcast channel transmission period. The broadcast channel transmission period may be predetermined in advance.

The network equipment periodically sends a plurality of broadcast channels, so that the terminal equipment periodically sends the broadcast channel indication information to the network equipment, and the network equipment can periodically update the beamforming weights adopted by the terminal equipment for sending and/or receiving signals according to the broadcast channel indication information.

A method for transmitting signals between the network device and the terminal device is exemplarily described below with reference to the signal transmission diagrams shown in fig. 4 to 7.

As shown in fig. 4, the period of the synchronization signal is T1, and the broadcast channel transmission period is T2, where T1 is T2. A network device (e.g., a base station) transmits four synchronization signals SS1, SS2, SS3, and SS4 in a time unit (e.g., a subframe) of a Synchronization Signal (SS) in a synchronization period by Frequency Division Multiplexing (FDM), that is, the four synchronization signals occupy the same time domain resource and different Frequency domain resources.

Wherein, the four synchronization signals can adopt the same analog beamforming vector and sequence. Each synchronization signal includes a primary synchronization signal and a secondary synchronization signal.

After a certain period of time (e.g., a predetermined time interval), the network device transmits Physical Broadcast Channels (PBCHs) corresponding to the synchronization signals SS1, SS2, SS3, and SS 4. The network device respectively transmits four broadcast channels, namely PBCH1, PBCH2, PBCH3 and PBCH4, in four Time units by Time-Division Multiplexing (TDM), wherein information carried by the four broadcast channels may be the same, and Time-frequency resources occupied in the Time unit in which the broadcast channels are located are also the same, but different analog beamforming weights are adopted.

At a receiving end, terminal equipment firstly detects the synchronous signals, receives the four synchronous signals by using different beam forming receiving weights on different frequency domain resources, and respectively measures the receiving quality of the four synchronous signals. For example, assuming that the terminal device has 16 receiving antennas, 4 DFT vectors with a length of 16 may be used to receive the synchronization signal. And the terminal equipment takes the beam forming receiving weight corresponding to the synchronous signal with the best receiving quality as a beam forming receiving weight for subsequently receiving the corresponding broadcast channel and other downlink signals.

Next, the terminal device detects four broadcast channels corresponding to the synchronization signal, determines a broadcast Channel with the best reception quality by measuring the reception power, and reports a corresponding broadcast Channel index (2 bits, corresponding to 4 broadcast channels, respectively) to the network device through a Physical Random Access Channel (PRACH).

The terminal equipment can detect the synchronous signal by the same method in each synchronous signal period and update the beam forming receiving weight.

The method for transmitting signals between the network device and the terminal device shown in fig. 5 is different from the method for transmitting signals between the network device and the terminal device shown in fig. 4 in that the broadcast channels corresponding to the synchronization signals occupy not different time domain resources but different frequency domain resources. At this time, the terminal device needs to detect the corresponding broadcast channel on a different frequency band.

Fig. 6 is another schematic diagram of a method of transmitting signals between a network device and a terminal device. The period of the synchronization signal is T1, the period corresponding to the broadcast channel is T2, and T2 is equal to or more than 2T 1.

The network device transmits a primary synchronization signal within a Synchronization Signal (SS) time unit (e.g., a subframe) within one synchronization period. The network device sends four primary synchronization signals, namely PSS1, PSS2, PSS3 and PSS4, in an FDM manner, that is, PSS1, PSS2, PSS3 and PSS4 occupy the same time domain resource and different frequency domain resources. The PSS1, PSS2, PSS3, and PSS4 may employ the same hybrid beamforming vectors and sequences.

Then, the network device transmits a Secondary Synchronization Signal (SSS) on the physical resource after a period of time, the secondary synchronization signal being transmitted only once.

Next, after a period of time, the network device transmits broadcast channels corresponding to the PSS1, PSS2, PSS3, and PSS 4. The network devices TDM-transmit four broadcast channels, PBHC1, PBHC2, PBHC3, and PBHC4, respectively, in four time units, respectively. The information carried by the PBHC1, the PBHC2, the PBHC3 and the PBHC4 is the same, the time-frequency resources occupied in the time unit are also the same, but different analog beamforming weights are adopted.

At the receiving end, the terminal device first detects the synchronization signal. The terminal equipment receives the four main synchronous signals by using different beam forming receiving weights on different frequency domain resources, and respectively measures the receiving quality of the four main synchronous signals. And the beam forming receiving weight corresponding to the main synchronizing signal with the best receiving quality is used as a broadcast channel corresponding to the subsequent receiving auxiliary synchronizing signal and a beam forming receiving weight of other downlink signals.

And after the terminal equipment detects the auxiliary synchronizing signal, respectively detecting four broadcasting channels corresponding to the synchronizing signal. Since T2 ≧ 2T1, the terminal device needs to receive the synchronization signal of at least two synchronization cycles and then detect the corresponding broadcast channel.

The method for transmitting signals between the network device and the terminal device shown in fig. 7 is different from the method for transmitting signals between the network device and the terminal device shown in fig. 6 in that the primary synchronization signal occupies not different frequency domain resources but different time domain resources (time units). Therefore, the terminal device needs to detect the corresponding primary synchronization signal at different time units.

The structures of the network device and the terminal device according to the embodiment of the present invention are schematically described below with reference to fig. 8 to 13.

Fig. 8 is a schematic structural diagram of a network device 800 of an embodiment of the present invention. The network device 800 of fig. 8 is capable of implementing the steps performed by the network device of fig. 2-7, and will not be described in detail here to avoid repetition. The network device 800 includes a first transmission module 810 and a second transmission module 820.

A first transmitting module 810, configured to transmit a plurality of synchronization signals in one synchronization signal period.

A second sending module 820, configured to send the broadcast channels corresponding to the plurality of synchronization signals after sending the plurality of synchronization signals, or send other signals except for the corresponding broadcast channels.

Optionally, as an embodiment, the plurality of synchronization signals use the same sequence.

Optionally, as an embodiment, the first sending module is specifically configured to send multiple synchronization signals in one synchronization signal period by using the same beamforming transmit weight.

Optionally, as an embodiment, at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

Optionally, as an embodiment, the transmission parameters of the multiple synchronization signals are transmission parameters agreed in advance by the network device and the terminal device, or the transmission parameters of the multiple synchronization signals are transmission parameters determined by the network device according to information carried by part of the synchronization signals in the multiple synchronization signals.

Optionally, as an embodiment, the following at least one transmission parameter of the corresponding broadcast channel is determined by the network device according to information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; the second sending module is specifically configured to send the corresponding broadcast channel according to the determined transmission parameter after sending the plurality of synchronization signals.

Optionally, as an embodiment, the second sending module 820 is specifically configured to send, after sending the multiple synchronization signals, multiple broadcast channels corresponding to the multiple synchronization signals, where the multiple broadcast channels carry the same information.

Optionally, as an embodiment, the second sending module is specifically configured to send, after sending the multiple synchronization signals, multiple broadcast channels corresponding to the multiple synchronization signals by using different beamforming transmit weights.

Optionally, as an embodiment, the corresponding broadcast channel is a plurality of broadcast channels, and at least one of the following transmission parameters of the plurality of broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel is a plurality of broadcast channels, the network device further includes a receiving module, configured to receive broadcast channel indication information sent by the terminal device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels.

Optionally, as an embodiment, the network device further includes a first determining module, configured to determine, according to the beamforming transmission weight used for sending the first broadcast channel, a first beamforming transmission weight used for sending a broadcast channel after the network device.

Optionally, as an embodiment, the first determining module is specifically configured to determine a beamforming transmission weight used for sending the first broadcast channel as the first beamforming transmission weight.

Optionally, as an embodiment, the network device further includes a second determining module, configured to determine, according to a beamforming transmit weight used by the network device to send the first broadcast channel, a first beamforming receive weight used by a signal sent by a terminal device and received by the network device later.

Optionally, as an embodiment, the receiving module is specifically configured to receive the broadcast channel indication information sent by the terminal device through a control channel or a random access channel.

Optionally, as an embodiment, the multiple broadcast channels carry the same MIB information.

Optionally, as an embodiment, the physical resource used by the synchronization signal sent multiple times has a predefined mapping relation with the physical resource used by the corresponding broadcast channel.

Optionally, as an embodiment, the corresponding broadcast channel is a physical broadcast channel for transmitting the MIB.

Fig. 9 is a schematic configuration diagram of a terminal apparatus 900 according to an embodiment of the present invention. The terminal device 900 of fig. 9 is capable of implementing the steps performed by the terminal device in fig. 2 to 7, and in order to avoid repetition, detailed description thereof is omitted here. The terminal device 900 comprises a first detection module 910 and a second detection module 920.

The first detecting module 910 is configured to detect a plurality of synchronization signals transmitted by a network device in a synchronization signal period.

A second detecting module 920, configured to detect, according to the detected multiple synchronization signals, broadcast channels corresponding to the multiple synchronization signals sent by the network device, or detect other signals sent by the network device except for the corresponding broadcast channels.

Optionally, as an embodiment, the first detecting module is specifically configured to: and detecting the plurality of synchronous signals according to transmission parameters agreed in advance by the network equipment and the terminal equipment or according to transmission parameters determined based on information carried by part of synchronous signals in the plurality of synchronous signals.

Optionally, as an embodiment, the second detection module is specifically configured to: determining at least one of the following transmission parameters of the corresponding broadcast channel according to the detected information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; and detecting the corresponding broadcast channel according to the determined transmission parameters.

Optionally, as an embodiment, the first detecting module is specifically configured to detect the multiple synchronization signals by using different beamforming receive weights; the second detection module is specifically configured to determine a first beamforming reception weight of the terminal device according to a beamforming reception weight adopted to detect a first synchronization signal in the plurality of synchronization signals; and adopting the first beamforming receiving weight value to detect the other signals or detect the corresponding broadcast channel.

Optionally, as an embodiment, the first synchronization signal is a synchronization signal with the best reception quality in the plurality of synchronization signals detected by the terminal device.

Optionally, as an embodiment, the terminal device further includes a determining module, configured to determine, according to the first beamforming reception weight, a first beamforming transmission weight, used by the terminal device to send a signal to the network device.

Optionally, as an embodiment, the corresponding broadcast channels are multiple broadcast channels carrying the same information.

Optionally, as an embodiment, at least one of the following transmission parameters of the plurality of broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel detected by the terminal device is a plurality of broadcast channels, the terminal device further includes a sending module, configured to send broadcast channel indication information to the network device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels.

Optionally, as an embodiment, the sending module is specifically configured to send the broadcast channel indication information to the network device through a control channel or a random access channel.

Optionally, as an embodiment, the first broadcast channel is a broadcast channel with the best reception quality among the plurality of broadcast channels detected by the terminal device.

Optionally, as an embodiment, the physical resources used by the plurality of synchronization signals and the physical resources used by the corresponding broadcast channel have a predefined mapping relationship.

Optionally, as an embodiment, the corresponding broadcast channel is a physical broadcast channel for transmitting a basic system information MIB.

Fig. 10 shows a schematic block diagram of a network device 1000 of an embodiment of the invention. It should be understood that the network device 1000 of fig. 10 is capable of performing the various steps performed by the network device of fig. 2-7, and in order to avoid repetition, will not be described in detail herein. The network device 1000 includes a memory 1010, a processor 1020, a receiver 1030, and a transmitter 1040.

A memory 1010 for storing programs.

A processor 1020 for executing programs in the memory 1010. When executed, the processor 1020 is specifically configured to invoke the transmitter 1040 to transmit a plurality of synchronization signals within one synchronization signal period.

The processor 1020 is further configured to invoke the transmitter 1040 to transmit the broadcast channels corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals, or to transmit other signals except for the corresponding broadcast channels.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to transmit multiple synchronization signals within one synchronization signal period and with the same beamforming transmit weight.

Optionally, as an embodiment, the following at least one transmission parameter of the corresponding broadcast channel is determined by the network device according to information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; the transmitter 1040 is specifically configured to transmit the corresponding broadcast channel according to the determined transmission parameter after transmitting the plurality of synchronization signals.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to transmit, after transmitting the plurality of synchronization signals, a plurality of broadcast channels corresponding to the plurality of synchronization signals, where the plurality of broadcast channels carry the same information.

Optionally, as an embodiment, the transmitter 1040 is specifically configured to, after transmitting the multiple synchronization signals, transmit multiple broadcast channels corresponding to the multiple synchronization signals by using different beamforming transmit weights.

Optionally, as an embodiment, when the corresponding broadcast channel is a plurality of broadcast channels, the processor 1020 is further configured to invoke the receiver 1030 to receive broadcast channel indication information sent by the terminal device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels.

Optionally, as an embodiment, the processor 1020 is further configured to determine, according to a beamforming transmission weight used for sending the first broadcast channel, a first beamforming transmission weight used for sending a broadcast channel by the network device later.

Optionally, as an embodiment, the processor 1020 is specifically configured to determine a beamforming transmission weight used for sending the first broadcast channel as the first beamforming transmission weight.

Optionally, as an embodiment, the receiver 1030 is specifically configured to receive the broadcast channel indication information sent by the terminal device through a control channel or a random access channel.

Optionally, as an embodiment, the processor 1020 is further configured to determine, according to a beamforming transmission weight used by the network device to send the first broadcast channel, a first beamforming reception weight used by the network device to receive a signal sent by a terminal device later.

Fig. 11 shows a schematic block diagram of a terminal device 1100 of an embodiment of the invention. It should be understood that the terminal device 1100 of fig. 11 is capable of performing the various steps performed by the terminal device in fig. 2-7, and in order to avoid repetition, will not be described in detail herein. Terminal apparatus 1100 includes memory 1110, processor 1120, receiver 1130, and transmitter 1140.

The memory 1110 stores programs.

A processor 1120 for executing the program in the memory 1110, wherein when the program is executed, the processor 1120 invokes a receiver 1130 to detect a plurality of synchronization signals transmitted by a network device within one synchronization signal period, and detects, according to the detected plurality of synchronization signals, broadcast channel signals corresponding to the plurality of synchronization signals, or other signals except for the corresponding broadcast channel, transmitted by the network device after the plurality of synchronization signals.

Optionally, as an embodiment, the processor 1120 is specifically configured to invoke the receiver 1130 to detect the multiple synchronization signals according to a transmission parameter agreed in advance by the network device and the terminal device, or according to a transmission parameter determined based on information carried by a part of the synchronization signals in the multiple synchronization signals.

Optionally, as an embodiment, the processor 1120 is specifically configured to invoke the receiver 1130 to determine, according to the detected information carried by the multiple synchronization signals, at least one of the following transmission parameters of the corresponding broadcast channel: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length; and detecting the corresponding broadcast channel according to the determined transmission parameters.

Optionally, as an embodiment, the processor 1120 is specifically configured to invoke the receiver 1130 to detect the multiple synchronization signals by using different beamforming receiving weights; determining a first beamforming receiving weight of the terminal device according to a beamforming receiving weight adopted for detecting a first synchronization signal in the plurality of synchronization signals; and the other signals or the corresponding broadcast channels are sent after the first beamforming receiving weight is adopted to receive the plurality of synchronous signals.

Optionally, as an embodiment, the processor 1120 is further configured to determine, according to the first beamforming reception weight, a first beamforming transmission weight used by the terminal device to send a signal to the network device.

Optionally, as an embodiment, the corresponding broadcast channel detected by the terminal device is a plurality of broadcast channels, and at least one of the following transmission parameters of the plurality of broadcast channels is different: HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

Optionally, as an embodiment, when the corresponding broadcast channel detected by the terminal device is a plurality of broadcast channels, the processor 1120 is further configured to invoke the transmitter 1140 to transmit broadcast channel indication information to the network device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels.

Optionally, as an embodiment, the processor 1120 is specifically configured to invoke the transmitter 1140 to transmit the broadcast channel indication information to the network device through a control channel or a random access channel.

Fig. 12 is a schematic configuration diagram of a system chip of the embodiment of the present invention. The system chip 1200 in fig. 12 includes an input interface 1210, an output interface 1220, at least one processor 1230, and a memory 1240, where the input interface 1210, the output interface 1220, the processor 1230, and the memory 1240 are connected via a bus, and the processor 1230 is configured to execute the code in the memory 1240, and when the code is executed, the processor 1230 implements the method executed by the network device in fig. 2 to 7.

Fig. 13 is a schematic configuration diagram of a system chip of the embodiment of the present invention. The system chip 1300 of fig. 13 includes an input interface 1310, an output interface 1320, at least one processor 1330, and a memory 1340, the input interface 1310, the output interface 1320, the processor 1330, and the memory 1340 are connected via a bus, the processor 1330 is configured to execute the code in the memory 1340, and when the code is executed, the processor 1330 implements the method executed by the terminal device in fig. 2 to fig. 7.

It is understood that the processor in the embodiments of the present invention may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It is to be understood that the Memory in embodiments of the present invention may be either volatile Memory or non-volatile Memory, or may include both volatile and non-volatile Memory, wherein non-volatile Memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), or flash Memory volatile Memory may be Random Access Memory (RAM), which serves as external cache Memory, by way of example and not limitation, many forms of RAM are available, such as Static RAM (Static RAM, SRAM), Dynamic Random Access Memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (syncronous DRAM, SDRAM), Double Data rate Synchronous Dynamic Random Access Memory (Double Data RAM, SDRAM), Enhanced Dynamic Random Access Memory (Enhanced DRAM, SDRAM), Synchronous Dynamic Random Access Memory (SDRAM), or Synchronous DRAM, or any other type of RAM suitable for accessing RAM, including, SDRAM, and SDRAM systems, but not limited to the teachings of these systems.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that in the present embodiment, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting a signal, comprising:

the method comprises the steps that terminal equipment detects a plurality of synchronous signals sent by network equipment in a synchronous signal period;

the terminal device detects a broadcast channel which is sent by the network device and corresponds to the plurality of synchronous signals according to the plurality of detected synchronous signals;

wherein the content of the first and second substances,

the corresponding broadcast channels are a plurality of broadcast channels carrying the same information;

the method further comprises the following steps: the terminal equipment sends broadcast channel indication information to the network equipment, wherein the broadcast channel indication information is used for indicating a first broadcast channel in the plurality of broadcast channels; the first broadcast channel is determined from a reference signal received power, RSRP; the broadcast channel indication information is indicated by a random access channel.

2. The method of claim 1, wherein the plurality of synchronization signals use the same sequence.

3. The method of claim 1, wherein at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

4. The method of claim 3, wherein the detecting, by the terminal device, a plurality of synchronization signals transmitted by the network device within one synchronization signal period comprises:

the terminal device detects the plurality of synchronous signals according to transmission parameters agreed in advance by the network device and the terminal device, or according to transmission parameters determined based on information carried by partial synchronous signals in the plurality of synchronous signals.

5. The method of claim 1, wherein the detecting, by the terminal device, the broadcast channel corresponding to the plurality of synchronization signals sent by the network device according to the detected plurality of synchronization signals comprises:

the terminal device determines at least one of the following transmission parameters of the corresponding broadcast channel according to the detected information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length;

and the terminal equipment detects the corresponding broadcast channel according to the determined transmission parameters.

6. The method of claim 1, wherein the terminal device detects a plurality of synchronization signals transmitted by the network device within one synchronization signal period, and comprises:

the terminal equipment adopts different beam forming receiving weights to detect the plurality of synchronous signals;

the terminal device detects, according to the detected plurality of synchronization signals, broadcast channels corresponding to the plurality of synchronization signals, which are sent by the network device, and includes:

the terminal equipment determines a first beamforming receiving weight of the terminal equipment according to a beamforming receiving weight adopted by a first synchronization signal in the plurality of synchronization signals;

and the terminal equipment adopts the first beamforming receiving weight to detect the corresponding broadcast channel.

7. The method of claim 6, wherein the first synchronization signal is a synchronization signal with the best reception quality among the plurality of synchronization signals detected by the terminal device.

8. The method of claim 6, further comprising:

and the terminal equipment determines a first beamforming transmitting weight used by the terminal equipment for transmitting signals to the network equipment according to the first beamforming receiving weight.

9. The method of claim 1, wherein at least one of the following transmission parameters of the plurality of broadcast channels is different: hybrid automatic repeat request HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

10. The method of claim 1, wherein the first broadcast channel is a broadcast channel with the best reception quality among the plurality of broadcast channels detected by the terminal device.

11. The method of claim 1, wherein the physical resources used by the plurality of synchronization signals have a predefined mapping relation with the physical resources used by the corresponding broadcast channel.

12. The method of claim 1, wherein the corresponding broadcast channel is a physical broadcast channel for transmitting basic system information (MIB).

13. A method of transmitting a signal, comprising:

the network equipment transmits a plurality of synchronous signals in one synchronous signal period;

the network device transmits a broadcast channel corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals;

wherein the content of the first and second substances,

the network device transmitting a broadcast channel corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals, including:

the network equipment transmits a plurality of broadcast channels corresponding to the plurality of synchronous signals after transmitting the plurality of synchronous signals, wherein the plurality of broadcast channels carry the same information;

the method further comprises the following steps:

the network equipment receives broadcast channel indication information sent by terminal equipment, wherein the broadcast channel indication information is used for indicating a first broadcast channel in the plurality of broadcast channels; the first broadcast channel is determined from a reference signal received power, RSRP; the broadcast channel indication information is indicated through a random access channel;

and the network equipment determines a first beamforming transmission weight value adopted by a signal sent by the network equipment later according to the beamforming transmission weight value adopted by the first broadcast channel.

14. The method of claim 13, wherein the plurality of synchronization signals use the same sequence.

15. The method of claim 13, wherein the network device transmits a plurality of synchronization signals within one synchronization signal period, comprising:

the network equipment transmits a plurality of synchronous signals by adopting the same beam forming emission weight value in one synchronous signal period.

16. The method of claim 13, wherein at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

17. The method of claim 16, wherein the transmission parameters of the plurality of synchronization signals are transmission parameters pre-agreed by the network device and the terminal device, or the transmission parameters of the plurality of synchronization signals are transmission parameters determined by the network device according to information carried by a part of the synchronization signals in the plurality of synchronization signals.

18. The method of claim 13, further comprising:

the network device determines at least one of the following transmission parameters of the corresponding broadcast channel according to the information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length;

and the network equipment sends the corresponding broadcast channel according to the determined transmission parameters after sending the plurality of synchronous signals.

19. The method of claim 13, wherein the network device transmits a plurality of broadcast channels corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals, comprising:

and after the network equipment sends the plurality of synchronous signals, adopting different beam forming emission weights to send a plurality of broadcast channels corresponding to the plurality of synchronous signals.

20. The method of claim 13, wherein at least one of the following transmission parameters of the plurality of broadcast channels is different: the method comprises the steps of automatic hybrid repeat request HARQ redundancy version, frequency domain resources, time domain resources, information scrambling mode, subcarrier interval or data transmission time length.

21. The method of claim 13, further comprising:

and the network equipment determines a first beamforming receiving weight value adopted by a signal sent by the terminal equipment and received by the network equipment later according to the beamforming transmitting weight value adopted by the first broadcast channel.

22. The method of claim 13, wherein the physical resources used by the synchronization signals transmitted multiple times have a predefined mapping relation with the physical resources used by the corresponding broadcast channel.

23. The method of claim 13, wherein the corresponding broadcast channel is a physical broadcast channel for transmitting basic system information MIB.

24. A terminal device, comprising:

the first detection module is used for detecting a plurality of synchronous signals sent by the network equipment in a synchronous signal period;

a second detecting module, configured to detect, according to the detected multiple synchronization signals, broadcast channels corresponding to the multiple synchronization signals and sent by the network device;

wherein the content of the first and second substances,

the terminal device further includes a sending module, configured to send broadcast channel indication information to the network device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels; the first broadcast channel is determined according to RSRP; the broadcast channel indication information is indicated by a random access channel.

25. The terminal device of claim 24, wherein the plurality of synchronization signals use the same sequence.

26. The terminal device of claim 24, wherein at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

27. The terminal device of claim 26, wherein the first detecting module is specifically configured to: and detecting the plurality of synchronous signals according to transmission parameters agreed in advance by the network equipment and the terminal equipment or according to transmission parameters determined based on information carried by part of synchronous signals in the plurality of synchronous signals.

28. The terminal device of claim 24, wherein the second detection module is specifically configured to:

determining at least one of the following transmission parameters of the corresponding broadcast channel according to the detected information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length;

and detecting the corresponding broadcast channel according to the determined transmission parameters.

29. The terminal device of claim 24, wherein the first detecting module is specifically configured to detect the multiple synchronization signals by using different beamforming receive weights;

the second detection module is specifically configured to determine a first beamforming reception weight of the terminal device according to a beamforming reception weight adopted to detect a first synchronization signal in the plurality of synchronization signals; and detecting the corresponding broadcast channel by adopting the first beamforming receiving weight.

30. The terminal device of claim 29, wherein the first synchronization signal is a synchronization signal with a best reception quality among the plurality of synchronization signals detected by the terminal device.

31. The terminal device of claim 29, wherein the terminal device further comprises a determining module, configured to determine a first beamforming transmit weight used by the terminal device to send a signal to the network device according to the first beamforming receive weight.

32. The terminal device of claim 24, wherein at least one of the following transmission parameters of the plurality of broadcast channels is different: hybrid automatic repeat request HARQ redundancy version, frequency domain resource, time domain resource, information scrambling mode, subcarrier interval or data transmission time length.

33. The terminal device according to claim 24, wherein the first broadcast channel is a broadcast channel with the best reception quality among the plurality of broadcast channels detected by the terminal device.

34. The terminal device of claim 24, wherein the physical resources used by the plurality of synchronization signals have a predefined mapping relationship with the physical resources used by the corresponding broadcast channel.

35. The terminal device of claim 24, wherein the corresponding broadcast channel is a physical broadcast channel for transmitting basic system information, MIB.

36. A network device, comprising:

a first sending module, configured to send a plurality of synchronization signals within one synchronization signal period;

a second transmitting module for transmitting a broadcast channel corresponding to the plurality of synchronization signals after transmitting the plurality of synchronization signals;

wherein the content of the first and second substances,

the second sending module is specifically configured to send a plurality of broadcast channels corresponding to the plurality of synchronization signals after sending the plurality of synchronization signals, where the plurality of broadcast channels carry the same information;

the network device further comprises a receiving module, configured to receive broadcast channel indication information sent by a terminal device, where the broadcast channel indication information is used to indicate a first broadcast channel in the plurality of broadcast channels; the first broadcast channel is determined according to RSRP; the broadcast channel indication information is indicated through a random access channel;

the network device further comprises a first determining module, configured to determine a first beamforming transmission weight used by a signal to be sent later by the network device according to a beamforming transmission weight used by the network device to send the first broadcast channel.

37. The network device of claim 36, wherein the plurality of synchronization signals employ the same sequence.

38. The network device of claim 36, wherein the first sending module is specifically configured to send multiple synchronization signals within one synchronization signal period and with the same beamforming transmit weight.

39. The network device of claim 36, wherein at least one of the following transmission parameters of the plurality of synchronization signals is different: frequency domain resources, time domain resources, subcarrier spacing, or data transmission time length.

40. The network device according to claim 39, wherein the transmission parameters of the synchronization signals are transmission parameters pre-agreed by the network device and the terminal device, or the transmission parameters of the synchronization signals are transmission parameters determined by the network device according to information carried by a part of the synchronization signals in the synchronization signals.

41. The network device of claim 36, wherein the at least one of the following transmission parameters of the corresponding broadcast channel is determined by the network device according to information carried by the plurality of synchronization signals: frequency domain resources, time domain resources, information scrambling mode, subcarrier intervals or data transmission time length;

the second sending module is specifically configured to send the corresponding broadcast channel according to the determined transmission parameter after sending the plurality of synchronization signals.

42. The network device of claim 36, wherein the second sending module is specifically configured to send, after sending the multiple synchronization signals, multiple broadcast channels corresponding to the multiple synchronization signals by using different beamforming transmission weights.

43. The network device of claim 36, wherein at least one of the following transmission parameters of the plurality of broadcast channels is different: the method comprises the steps of automatic hybrid repeat request HARQ redundancy version, frequency domain resources, time domain resources, information scrambling mode, subcarrier interval or data transmission time length.

44. The network device according to claim 36, wherein the network device further comprises a second determining module, configured to determine, according to the beamforming transmit weight used by the network device to transmit the first broadcast channel, a first beamforming receive weight used by the network device to receive a signal transmitted by a terminal device later.

45. The network device of claim 36, wherein the physical resources used by the synchronization signals transmitted multiple times have a predefined mapping relationship with the physical resources used by the corresponding broadcast channel.

46. The network device of claim 36, wherein the corresponding broadcast channel is a physical broadcast channel used for transmitting basic system information, MIB.

47. A terminal device comprising a processor and a memory, the memory having instructions stored thereon that, when executed by the processor, cause the processor to perform the method of any of claims 1-12.

48. A network device comprising a processor and a memory, the memory having instructions stored thereon that, when executed by the processor, cause the processor to perform the method of any of claims 13-23.

49. A computer-readable storage medium, on which a computer program is stored which, when executed by a computer, causes the computer to carry out the method according to any one of claims 1-12.

50. A computer-readable storage medium, having stored thereon a computer program which, when executed by a computer, causes the computer to perform the method according to any of claims 13-23.